Mode Analysis

Simulation of waveguided modes across the visible spectrum

Setfos Mode Analysis can analyze in detail the light emission channels. In an OLED light is emitted into different channels which are either escaping to the far-field or waveguided inside the OLED layers. Without outcoupling structures, only the the light emitted inside the escape cone is visible to the end-user.Mode analysis simulation calculates the contribution of the diffrent optical modes to the total emitted power:

Air modes escaping to the outside world

Substrate modes waveguided in a carrier substrate

Organicmodes waveguided in the organic semiconductor stack

Plasmonmodes coupled to the metal electrodes

Non-radiative quenching losses

Modes can be inspected across the spectrum or summarized taking into account the spectral distribution of the emitter.

Coatings, Filters & Thin Film Optics

Simulation of A white oled stack with colour filter

Cavity and thin film design are the cornerstone of OLED optical design. The optical design is not limited to the (around 100nm) stack of organic semiconductor layers but also to colour filters and anti-reflection layers that are placed in the light path to achieve top class display & lighting performance.

Setfos calculates the colour, angular variation and polarization of the whole OLED stack including coherent optics in the microcavity and coatings incoherently coupled through the substrate.